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Closed Loop Current Sensor AC/DC Current 5V Automotive 8-Pin SOIC T/R

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TMCS1101A2BQDRQ1 General Description

The TMCS1101-Q1 is a galvanically isolated Hall-effect current sensor capable of DC or AC current measurement with high accuracy, excellent linearity, and temperature stability. A low-drift, temperature-compensated signal chain provides < 1.5% full-scale error across the device temperature range.

The input current flows through an internal 1.8-mΩ conductor that generates a magnetic field measured by an integrated Hall-effect sensor. This structure eliminates external concentrators and simplifies design. Low conductor resistance minimizes power loss and thermal dissipation. Inherent galvanic insulation provides a 600-V lifetime working voltage and 3-kVRMS basic isolation between the current path and circuitry. Integrated electrical shielding enables excellent common-mode rejection and transient immunity.

The output voltage is proportional to the input current with four sensitivity options. Fixed sensitivity allows the TMCS1101-Q1 to operate from a single 3-V to 5.5-V power supply, eliminates ratiometry errors, and improves supply noise rejection. The current polarity is considered positive when flowing into the positive input pin. Both unidirectional and bidirectional sensing variants are available.

The TMCS1101-Q1 draws a maximum supply current of 6 mA, and all sensitivity options are specified over the operating temperature range of –40°C to +125°C.


Key Features

  • AEC-Q100 qualified for automotive applications
    • Temperature Grade 1: –40°C to 125°C, TA
  • Functional Safety-Capable
    • Documentation available to aid functional safety system design
  • Total error: ±0.51% typical, ±1.15% maximum, –40°C to 85°C
    • Sensitivity error: ±0.5%
    • Offset error: 9 mA
    • Offset drift: 0.04 mA/°C
    • Linearity error: 0.05%
  • Lifetime and environmental drift: <±0.5%
  • 3-kVRMS isolation rating
  • Robust 600-V lifetime working voltage
  • Bidirectional and unidirectional current sensing
  • Zero drift internal reference
  • Operating supply range: 3 V to 5.5 V
  • Signal bandwidth: 80 kHz
  • Multiple sensitivity options:
    • TMCS1101A1B/U -Q1: 50 mV/A
    • TMCS1101A2B/U -Q1: 100 mV/A
    • TMCS1101A3B/U -Q1: 200 mV/A
    • TMCS1101A4B/U -Q1: 400 mV/A
  • Safety related certifications
    • UL 1577 Component Recognition Program
    • IEC/CB 62368-1


Continuous current (max) (A) 20 Working isolation voltage (VIOWM) (Vrms) 424
Magnetic sensitivity (typ) (mV/A) 50, 100, 200, 400 Input offset current (±) (max) (mA) 45, 50, 52.5, 60, 70, 80, 90, 100
Input offset current drift (±) (typ) (µA/°C) 0.1 Features Internal Zero Current Reference Voltage
Supply voltage (max) (V) 5.5 Supply voltage (min) (V) 3
Iq (max) (mA) 5 CMTI (kV/µs) 25
Small-signal bandwidth (Hz) 80000 Sensitivity error (%) 0.3
Sensitivity error drift (±) (max) (ppm/°C) 50 Rating Automotive
TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125
Creepage (min) (mm) 4 Clearance (min) (mm) 4
Isolation rating Basic Surge isolation voltage (VIOSM) (VPK) 6000

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Our products are mainly transported and delivered by DHL, FedEx, UPS and other logistics partners on site -- Available to 200+ countries.


AVAQ determines and packages all devices based on electrostatic discharge (ESD) and moisture sensitivity level (MSL) protection requirements.

warranty Warranty & Returns

Our policies and procedures are designed to ensure compliance with various quality specifications and to quickly resolve quality-related issues.

We promise to provide 365 days quality assurance service for all our products.

If you have any dissatisfaction with the quality of the product you received, you can contact us for a refund or exchange, as long as the product is kept in its original condition.

Ratings and Reviews

G**n 03/31/2024

Everything corresponds to the description came well, thanks to the seller i advise



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TMCS1101A2BQDRQ1 Datasheet PDF

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